I am running Mac OS Mojave 10.14.6 (18G103).
I am getting notifications that mac os has a software update to be installed. However, when I open software updates in system preferences, I get the error "Preferences Error. There was an error in Software Update preferences." My mac will not update.
The only possible reason that I can think of that this might be happening, is because I tinkered with disabling badge notifications and mac os update notifications using a terminal command. The command I used was
defaults write com.apple.systempreferences AttentionPrefBundleIDs 0 killall Dock
I'm assuming my error has something to do with a corrupt or misconfigured .plist file but I'm not sure which file I should be looking at and how to check it. Could someone please help me debug this issue? Thank you kindly for your help and patience.